Perhaps you should try some spelling variations:
phan thanh » pham thanh, ban thanh, van thanh
hoc thieu » hoc hien
canh sinh » canh tinh, canh binh, tinh sinh
dung cong » dung trong
cong phan » cong nhan, cong khan, chong phap
thanh bac » nhanh bac, thanh bai, thanh san
sinh va » sinh vat, tinh va, dinh van
va dung » van dung, va duong, vat dung

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) manh - canh sinh va dung cong phan thanh bac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) manh - canh sinh va dung cong phan thanh bac.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (toc thieu)) manh - canh sinh va dung cong phan thanh bac*.